Seiko Cal. 0739 - 487

The 0739-487 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-831a800056e3]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1975

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